JPS5572955A - Non-contact seal apparatus - Google Patents
Non-contact seal apparatusInfo
- Publication number
- JPS5572955A JPS5572955A JP14421878A JP14421878A JPS5572955A JP S5572955 A JPS5572955 A JP S5572955A JP 14421878 A JP14421878 A JP 14421878A JP 14421878 A JP14421878 A JP 14421878A JP S5572955 A JPS5572955 A JP S5572955A
- Authority
- JP
- Japan
- Prior art keywords
- seal
- rotating shaft
- pressure side
- section
- cylinder section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
PURPOSE: To accomplish a non-contact seal positively preventing the leakage due to the generation of bubble by arranging a circular stepped section in the inner surface of a casing surrounding the rotating shaft and a screw seal on the circumference of the cylinder section provided on the rotating shaft.
CONSTITUTION: A circular stepped section 3 is formed on the inner surface of a casing surrounding the rotating shaft 1 and demarkating the high pressure side zone and the low pressure side zone. The cylinder section 4 provided on the rotating shaft 1 is provided with a circumferential surface 4a facing the inner surface of the circular stepped surface 3 with a clearance G1 and an end 4b facing the stepped surface 3b of the circular stepped section 3. A screw seal 5 is provided on the outer surface 4a of the cylinder section 4 and a seal fluid 6 is sealed into the clearances G1 and G2. With such an arrangement, the seal fluid in the clearance G2 is given a centrifugal force with the rotation of the end 4b of the cylinder section. Thus, the fluid 6 is fed to the low pressure side of the screw seal to check the generation of bubble on the low pressure side.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14421878A JPS5572955A (en) | 1978-11-24 | 1978-11-24 | Non-contact seal apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14421878A JPS5572955A (en) | 1978-11-24 | 1978-11-24 | Non-contact seal apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572955A true JPS5572955A (en) | 1980-06-02 |
Family
ID=15356980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14421878A Pending JPS5572955A (en) | 1978-11-24 | 1978-11-24 | Non-contact seal apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572955A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6163077U (en) * | 1984-09-29 | 1986-04-28 |
-
1978
- 1978-11-24 JP JP14421878A patent/JPS5572955A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6163077U (en) * | 1984-09-29 | 1986-04-28 |
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